In this paper, the fourth author’s name and institution were given incorrectly. The correct name should be ‘Seong-Woong Kang’ instead of ‘Seung Woong Gang.’ The correct institution should be ‘Department of Rehabilitation Medicine, Gangnam Severance Hospital, Rehabilitation Institute of Neuromuscular Disease, Yonsei University College of Medicine, Seoul, Korea’ instead of ‘Department of Rehabilitation Medicine, Yonsei University College of Medicine, Seoul, Korea.’

Sangheun Lee, MD¹, Heeyoung Lee, MD¹, Lucy Youngmin Eun, MD, PhD¹, Seong-Woong Kang, MD, PhD²

¹Division of Pediatric Cardiology, Department of Pediatrics, Yonsei University College of Medicine, Seoul, Korea